| 摘要: |
| 基于2002、2007、2012、2017年4期Landsat遥感影像，应用景观生态学和统计分析相结合的方法，探讨了厦门景观格局对热环境的影响作用及其变化规律。结果表明，2002—2017年，厦门市相对地表温度(Relative Land Surface Temperature，RLST)呈上升趋势，城区的热岛效应逐步凸显；RLST较高的区域多为耕地、建设用地，RLST较低的区域多为绿地、水体；在类型层面，绿地的景观类型比例、最大斑块指数、聚集度指数、平均斑块面积、形状指数与相对地表温度呈负相关，斑块密度、边缘密度与RLST呈正相关。耕地、建设用地的景观指数与RLST均呈正相关；在景观层面，景观分割指数、形状指数、斑块密度、边缘密度、香浓均匀度指数与RLST呈正相关；景观优势度大、聚集度高的景观类型，如耕地、绿地、建设用地对RLST影响显著。随着城区的扩张与耕地的减少，建设用地景观格局对RLST的影响逐渐加强，而耕地景观格局对RLST的影响不断减弱；景观层面的景观格局对RLST的影响作用与不同景观类型总体的结构组分及空间构型有关。随着景观结构趋于复杂，景观层面的景观格局对RLST的影响逐渐增强。 |
| 关键词: 风景园林 城市热岛 相对地表温度 景观格局 时空演变 厦门 |
| DOI： |
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| The Spatiotemporal Coupling Relationship of Landscape Pattern and Thermal Environment in Xiamen, 2002—2017 |
| SHEN Zhongjian,ZENG Jian,REN Lanhong |
| Abstract: |
| Landsat remote sensing image from 2002, 2007, 2012, 2017 are used to explore the influence of landscape pattern on the thermal environment and its variation law in Xiamen, China. Through the integration of landscape ecology and statistical analysis methods, the results show that the relative land surface temperature (RLST) of Xiamen City shows an increase from 2002 to 2017, and the heat island effect of urban is gradually prominent. The areas with high RLST in the city are mostly cultivated land and construction land, while the areas with low RLST are mostly green space and water area. At the class level, percentage of landscape, largest patch index, aggregation index, mean patch area and landscape shape index of green space are negatively correlated with RLST, while patch density and edge density are positively correlated with RLST. The landscape indices of cultivated land and construction land are positively correlated with RLST. At the landscape level, landscape division index, landscape shape index, patch density, edge density, and Shannon's evenness index are positively correlated with RLST. Landscape types with high landscape dominance and aggregation had significant influence on RLST. With the expansion of urban areas and the decrease of cultivated land, the influence of landscape pattern of construction land on RLST is gradually strengthened, while that of cultivated land on RLST is continuously weakened. The impact of landscape pattern at the landscape level on RLST is related to the overall structural composition and spatial configuration of different landscape types. As the landscape structure become complex increasingly, the influence of landscape pattern at landscape level on RLST is gradually strengthened. |
| Key words: landscape architecture urban heat island relative land surface temperature (RLST) landscape pattern spatiotemporal evolution Xiamen |
